CN216193985U

CN216193985U - Bridge anti-seismic support

Info

Publication number: CN216193985U
Application number: CN202122654040.6U
Authority: CN
Inventors: 袁珍珍; 徐启; 王宁
Original assignee: Shandong Luda Engineering Design Consulting Co ltd
Current assignee: Shandong Luda Engineering Design Consulting Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-05
Anticipated expiration: 2031-11-01

Abstract

The application discloses bridge anti-seismic support, it includes bridge and pier, the bridge with install anti-seismic support between the pier, anti-seismic support includes steel sheet, lower steel sheet and installs at last steel sheet and the rubber composite pad down between the steel sheet, the bottom of bridge is pre-buried to have the connecting plate, go up the top of steel sheet and seted up the connecting hole, be equipped with in the connecting hole and be used for going up the last locating component that steel sheet and connecting plate were connected, be equipped with the fixed plate on the pier, the vertical mounting groove of having seted up on the fixed plate, the fixed slot has been seted up with the corresponding position of mounting groove in the bottom of lower steel sheet, be equipped with in the fixed slot and be used for the lower locating component who is connected steel sheet and fixed plate down. This application is changing the antidetonation support in-process, through carrying out prepositioning to the antidetonation support for the antidetonation support is more convenient, accurate when the installation.

Description

Bridge anti-seismic support

Technical Field

The application relates to the field of bridge buildings, in particular to a bridge anti-seismic support.

Background

The bridge bearing is a device erected on a pier, the top surface of the bridge bearing the upper structure of the bridge, the device has the functions of fixing the upper structure on the pier, bearing various forces acting on the upper structure and reliably transmitting the forces to the pier, along with the increase of road traffic, more and more vibrations are generated in the driving process of vehicles borne by the bridge, and China is in an earthquake-prone area, in order to increase the anti-seismic effect of the bridge and reduce the influence of external vibrations on the bridge main body, the existing bridge bearing not only plays a role in supporting the bridge main body, but also has a certain anti-seismic effect.

At present, a common anti-seismic support comprises an upper steel plate and a lower steel plate, a rubber composite pad is arranged between the upper steel plate and the lower steel plate, the lower surface of the rubber composite pad is fixedly connected with the upper surface of the lower steel plate, the upper surface of the rubber composite pad is connected with a sliding plate in an adhesive manner, the lower surface of the upper steel plate is provided with a sliding chute for the sliding plate to slide, stress generated inside the rubber composite pad is avoided through relative sliding between the sliding plate and the sliding chute, then bolt holes are formed in the upper steel plate and the lower steel plate, reinforcing anchor bolts are arranged in the bolt holes, the upper steel plate is connected with a bridge through the reinforcing anchor bolts, the lower steel plate is connected with a pier, so that the anti-seismic capability of the bridge is effectively improved, after the anti-seismic support is used for a period of time, if the rubber composite pad is aged and cracked, after the normal work of the anti-seismic support is influenced, the anti-seismic support needs to be timely replaced, the bridge is jacked up through a jack, the anti-seismic support is replaced, and then the bridge falls back to the original position, and finally, anchoring.

In view of the above-mentioned related technologies, the inventor thinks that in the process of replacing the anti-seismic support, because the anti-seismic support is large in size, the anti-seismic support needs to be positioned at a predetermined position in the installation process, the installation position needs to be adjusted for many times, and finally the upper steel plate is connected with the bridge through the anchor bolt, and the lower steel plate is connected with the bridge pier, so the installation process is troublesome, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the displacement is probably appeared before the anchor when the antidetonation is supported inconvenient when the installation, this application provides a bridge antidetonation support.

The application provides a bridge anti-seismic support adopts following technical scheme:

the utility model provides a bridge anti-seismic support, includes bridge and pier, the bridge with install anti-seismic support between the pier, anti-seismic support includes steel sheet, lower steel sheet and installs at last steel sheet and the rubber composite pad between the steel sheet down, the pre-buried connecting plate that has in bottom of bridge, the connecting hole has been seted up on the top of going up the steel sheet, be equipped with in the connecting hole and be used for the last locating component who couples together last steel sheet and connecting plate, be equipped with the fixed plate on the pier, the vertical mounting groove of having seted up on the fixed plate, the fixed slot has been seted up with the corresponding position of mounting groove in the bottom of lower steel sheet, be equipped with in the fixed slot and be used for the lower locating component who couples together lower steel sheet and fixed plate.

Through adopting above-mentioned technical scheme, pre-buried connecting plate will go up the steel sheet and be connected with the connecting plate through last locating component, and the fixed plate that further sets up on the pier through the lower locating component who sets up in the fixed slot, can make down the steel sheet and be connected with the pier to can effectually carry out the prepositioning to the anti-seismic support, make the anti-seismic support can adjust mounted position before the anchor, avoid the displacement during the anchor, it is more convenient, accurate to install.

Optionally, go up locating component including rotating the dwang of connection in the connecting hole, set up the spacing groove with dwang looks adaptation on the connecting plate, dwang one end extends to the spacing inslot and is equipped with the stopper with spacing groove looks adaptation, the intermediate position and the dwang fixed connection of stopper, both ends are the expansion end, the bottom of spacing groove is equipped with the ring channel with stopper looks adaptation, the stopper can be at the ring channel internalization.

Through adopting above-mentioned technical scheme, the dwang of setting is through rotatory dwang for the stopper can follow the spacing inslot cunning to the ring channel in, thereby can effectually be connected last steel sheet and connecting plate, realize the prepositioning to last steel sheet.

Optionally, a bearing is arranged in the connecting hole, an outer ring of the bearing is fixedly connected with the inner wall of the connecting hole, and an inner ring of the bearing is connected with the rotating rod in a sliding manner.

Through adopting above-mentioned technical scheme, the bearing of setting, the outer lane of bearing and the inner wall fixed connection of connecting hole, inner circle and dwang fixed connection can be connected dwang and last steel sheet, the rotary motion of effectual realization dwang.

Optionally, the lower positioning assembly comprises a limiting spring fixedly connected to the inner wall of the fixing groove, the other end of the limiting spring is fixedly connected with a supporting block, the supporting block can be accommodated in the mounting groove, and a locking assembly for locking the supporting block is arranged in the mounting groove.

Through adopting above-mentioned technical scheme, the spacing spring of setting, the one end fixedly connected with supporting shoe of fixed slot is kept away from to spacing spring, and the supporting shoe can be connected steel sheet and pier down through holding in the fixed slot to effectual steel sheet carries out prepositioning down.

Optionally, the locking assembly comprises a holding groove arranged on the inner wall of the mounting groove, a reset spring fixedly connected to the inner wall of the holding groove, a fixture block fixedly connected to the other end of the reset spring, one end, away from the reset spring, of the fixture block is conical, and a butt groove matched with the fixture block is formed in the supporting block.

Through adopting above-mentioned technical scheme, the reset spring that sets up, the inner wall fixed connection of holding tank is in advance reserved to reset spring one end, and the other end and fixture block fixed connection, fixture block can prevent that the supporting shoe from taking place to rock through contradicting butt joint groove, increase the steadiness of supporting shoe.

Optionally, the top end of the supporting block is fixedly connected with a shifting lever, and the shifting lever penetrates through the limiting spring and extends to the outside of the lower steel plate.

Through adopting above-mentioned technical scheme, the driving lever of setting, the driving lever extend to the outside of steel sheet down, through dragging the driving lever for the supporting shoe can contract to the fixed slot in, is convenient for change the antidetonation support.

Optionally, one end of the shifting lever extending to the outside of the lower steel plate is fixedly connected with the shifting block.

Through adopting above-mentioned technical scheme, the inserted bar is dragged through handheld shifting block to the shifting block of setting, and the application of force of being convenient for is more convenient when resetting the supporting shoe.

Optionally, one end of the rotating rod, which is far away from the limiting block, extends to the bottom end of the upper steel plate and is connected with a grab handle.

By adopting the technical scheme, the handle is arranged, so that the rotating rod can be rotated very conveniently and more conveniently through the handle.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the rotating rod can be effectively rotated through the grab handle, so that the limiting block can slide into the annular groove from the limiting groove, the upper steel plate can be effectively connected with the connecting plate, the pre-positioning of the upper steel plate is realized, the displacement condition generated when the upper steel plate is anchored with a bridge is effectively reduced, and the installation is more convenient and accurate;

2. the supporting shoe of setting, during the installation, the supporting shoe is through holding in the fixed slot, and the rethread fixture block contradicts the butt inslot wall on the supporting shoe to can effectually lock the supporting shoe, thereby realize the prepositioning of steel sheet and pier down, it is more convenient when the steel sheet under the anchor.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of the embodiment of the present application along the vertical direction of the rotating rod;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present application along a vertical direction of the support block.

Reference numerals: 1. a bridge; 10. a deflector rod; 11. shifting blocks; 2. a bridge pier; 3. an anti-seismic support; 30. steel plate feeding; 31. a lower steel plate; 32. a limiting spring; 4. a rubber composite pad; 5. a connecting plate; 6. a fixing plate; 60. a support block; 7. rotating the rod; 70. a limiting groove; 71. a limiting block; 72. an annular groove; 73. a handle; 8. a bearing; 9. accommodating grooves; 90. a return spring; 91. and (7) clamping blocks.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses bridge antidetonation support, refer to fig. 1, including bridge 1 and pier 2, install antidetonation support 3 between bridge 1 and the pier 2, antidetonation support 3 in this embodiment includes steel sheet 30, steel sheet 31 down and install at last steel sheet 30 and the compound 4 of rubber between the steel sheet 31 down, it explains very much, when changing antidetonation support 3 in this embodiment, last steel sheet 30 and bridge 1 fixed connection need be gone up through the crab-bolt, steel sheet 31 and pier 2 fixed connection down, thereby make antidetonation support 3 can effectively improve the shock resistance of bridge 1.

Referring to fig. 2, in order to avoid the situation that the anti-seismic support 3 is displaced before being anchored, thereby causing inconvenient installation and requiring multiple adjustments, a connecting plate 5 is pre-embedded at the bottom of the bridge 1, a connecting hole is formed at the top end of the upper steel plate 30, a bearing 8 is arranged in the connecting hole, an outer ring of the bearing 8 is fixedly connected with the inner wall of the connecting hole, an inner ring of the bearing 8 is slidably connected with a rotating rod 7, a limiting groove 70 matched with the rotating rod 7 is formed in the connecting plate 5, one end of the rotating rod 7 extends into the limiting groove 70 and is provided with a limiting block 71 matched with the limiting groove 70, the other end extends to the bottom end of the upper steel plate 30 and is connected with a grab handle 73, the cross section of the limiting block 71 is rectangular and is fixedly connected with the rotating rod 7 at the middle position, two ends thereof are movable ends, a countersunk groove capable of accommodating the limiting block 71 is formed at the top of the connecting hole, and an annular groove 72 is further formed in the inner wall of the limiting groove 70, during the installation, stopper 71 holds in the countersunk head inslot, aligns connecting hole and spacing groove 70 back, rotates dwang 7 through grab handle 73, and stopper 71 can follow spacing groove 70 in the slippage arrives ring channel 72 to can effectually couple together last steel sheet 30 and connecting plate 5, realize going up the prepositioning of steel sheet 30 and bridge 1, make when the anchor goes up steel sheet 30 more accurate.

Referring to fig. 3, in this embodiment, in order to further carry out prepositioning with pier 2 with lower steel sheet 31, when making installation antidetonation support 3, can effectively avoid antidetonation support 3 to take place the displacement, thereby need adjustment many times, it is inconvenient to lead to the installation, consequently be equipped with fixed plate 6 on pier 2, the mounting groove has vertically been seted up on fixed plate 6, the fixed slot has been seted up with the corresponding position of mounting groove in the bottom of lower steel sheet 31, the spacing spring 32 of inner wall fixedly connected with of fixed slot, the one end fixedly connected with supporting shoe 60 of fixed slot is kept away from to spacing spring 32.

During construction, the anti-seismic support 3 is arranged on the pier 2, the supporting block 60 can be contracted into the fixing groove, the anti-seismic support 3 is moved, the supporting block 60 can be bounced into the mounting groove by using the elasticity of the limiting spring 32, so that the anti-seismic support 3 can be limited, the pre-positioning of the lower steel plate 31 and the pier 2 is realized, the limiting spring 32 and the supporting block 60 can also improve the buffer effect of the anti-seismic support 3, the anti-seismic capacity is improved, further, in order to lock the supporting block 60, the accommodating groove 9 is formed in the inner wall of the mounting groove, the inner wall of the accommodating groove 9 is fixedly connected with the reset spring 90, the other end of the reset spring 90 is fixedly connected with the fixture block 91, one end of the fixture block 91, which is far away from the reset spring 90, is conical, the supporting block 60 is provided with an abutting groove matched with the fixture block 91, when the supporting block 60 is bounced into the mounting groove, the supporting block 60 can abut against the inclined surface of the fixture block 91, the inclined surface of the fixture block 91 is contracted along the accommodating groove 9, after supporting shoe 60 fixes a position, fixture block 91 loses to support to press can effectual conflict butt joint groove's inner wall to can lock fixture block 91, reduce the condition that fixture block 91 rocked in the mounting groove.

In this embodiment, the top fixedly connected with driving lever 10 of the supporting shoe 60 that sets up, driving lever 10 passes spacing spring 32 and extends to the outside of steel sheet 31 down, when needing to change antidetonation support 3, through dragging driving lever 10, can drive supporting shoe 60 and contract in the fixed slot, supporting shoe 60 upwards supports the inclined plane of pressing fixture block 91 this moment, fixture block 91 contracts in holding tank 9, can relieve the locking of fixture block 91 to supporting shoe 60, supporting shoe 60 contracts to in the fixed slot, in addition, for better driving lever 10 that drags, consequently, extend to the one end fixedly connected with shifting block 11 of the outside of steel sheet 31 down at driving lever 10, through to shifting block 11 application of force, can be more laborsaving drag driving lever 10.

The implementation principle of the embodiment of the application is as follows: when the anti-seismic support 3 is installed, the anti-seismic support 3 is arranged on the pier 2, the anti-seismic support 3 is moved until the supporting block 60 is bounced into the installation groove by the elasticity of the limiting spring 32, then the supporting block 60 is locked by the fixture block 91, so that the pre-positioning of the lower steel plate 31 and the pier 2 is realized, the limiting block 71 is further slid into the annular groove 72 from the limiting groove 70 by the grab handle 73, so that the pre-positioning of the upper steel plate 30 and the bridge 1 is realized, finally, the anti-seismic support 3 is effectively installed between the bridge 1 and the pier 2 by the anchor bolt, the number of times of adjustment is reduced before the anchoring by the pre-positioning installation of the anti-seismic support 3, the installation is more convenient, when the support 3 needs to be replaced, the supporting block 60 can be contracted into the fixed groove by dragging the anti-seismic deflector rod 10, and then the rotating rod 7 is rotated reversely, so that the limiting block 71 is slid into the limiting groove 70 from the annular groove 72, and the limiting block 71 is accommodated in the countersunk groove, and the anchorage to the anti-seismic support 3 is released, so that the disassembly of the anti-seismic support 3 can be realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a bridge antidetonation support which characterized in that: comprises a bridge (1) and piers (2), an anti-seismic support (3) is arranged between the bridge (1) and the piers (2), the anti-seismic support (3) comprises an upper steel plate (30), a lower steel plate (31) and a rubber composite pad (4) arranged between the upper steel plate (30) and the lower steel plate (31), the bottom of the bridge (1) is embedded with a connecting plate (5), the top end of the upper steel plate (30) is provided with a connecting hole, an upper positioning component used for connecting the upper steel plate (30) and the connecting plate (5) is arranged in the connecting hole, a fixing plate (6) is arranged on the pier (2), an installation groove is vertically arranged on the fixing plate (6), the bottom end of the lower steel plate (31) is provided with a fixed groove at the position corresponding to the mounting groove, and a lower positioning assembly used for connecting the lower steel plate (31) with the fixing plate (6) is arranged in the fixing groove.

2. An anti-seismic bridge support according to claim 1, wherein: go up locating component including rotating dwang (7) of connecting in the connecting hole, set up the spacing groove with dwang (7) looks adaptation on connecting plate (5), dwang (7) one end extends to spacing groove (70) in and be equipped with stopper (71) with spacing groove (70) looks adaptation, the intermediate position and dwang (7) fixed connection of stopper (71), both ends are the expansion end, the bottom of spacing groove (70) is equipped with ring channel (72) with stopper (71) looks adaptation, stopper (71) can be at ring channel (72) internalization.

3. An earthquake-resistant bridge support as claimed in claim 2, wherein: the bearing (8) is arranged in the connecting hole, the outer ring of the bearing (8) is fixedly connected with the inner wall of the connecting hole, and the inner ring of the bearing (8) is connected with the rotating rod (7) in a sliding mode.

4. An anti-seismic bridge support according to claim 1, wherein: the lower positioning assembly comprises a limiting spring (32) fixedly connected to the inner wall of the fixing groove, the other end of the limiting spring (32) is fixedly connected with a supporting block (60), the supporting block (60) can be contained in the mounting groove, and a locking assembly for locking the supporting block (60) is arranged in the mounting groove.

5. An earthquake-resistant bridge support as claimed in claim 4, wherein: locking assembly is including setting up holding tank (9) at the mounting groove inner wall, and fixed connection is at reset spring (90) of holding tank (9) inner wall, the other end fixedly connected with fixture block (91) of reset spring (90), the one end that reset spring (90) were kept away from in fixture block (91) is the toper, be equipped with the butt groove with fixture block (91) looks adaptation on supporting shoe (60).

6. An earthquake-resistant bridge support as claimed in claim 5, wherein: the top end of the supporting block (60) is fixedly connected with a deflector rod (10), and the deflector rod (10) penetrates through the limiting spring (32) and extends to the outside of the lower steel plate (31).

7. An earthquake-resistant bridge support as claimed in claim 6, wherein: one end of the deflector rod (10) extending to the outside of the lower steel plate (31) is fixedly connected with a deflector block (11).

8. An earthquake-resistant bridge support as claimed in claim 2, wherein: one end of the rotating rod (7) far away from the limiting block (71) extends to the bottom end of the upper steel plate (30) and is connected with a grab handle (73).